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Hitachi RAC-18SX8, Instruction Manual

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Hitachi RAC-18SX8 Instruction Manual Download Page 49

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CONTACT YOUR SALES AGENT IMMEDIATELY ON FOLLOWING CASES

In the event that any trouble or phenomenon listed below still occurs even after a 
check has been conducted according to the troubleshooting procedures on page 
45~49 , disconnect the power plug from the outlet (or switch off the circuit breaker) 
and immediately contact your sales agent.

•  The circuit breaker switches off or the fuse blows frequently.
•  The switch operation is not stable.
•  Foreign matter or water accidentally enters the unit interior.
•  The power cord gets excessively hot or its insulation is torn or stripped.
•   (TIMER) indicator or 

 (MONITOR) indicator on the indoor unit display blinks.

TEMPORARY  OPERATION

Press the temporary switch to start temporary operation if the remote controller cannot function due 
to dead batteries.

1

Unplug the power plug when running 
the temporary operation. (Or turn off the 
circuit breaker.)

2

3

Automatic operation starts when the temporary switch 
is pressed.

•

 The air conditioner performs force-cooling operation if the temporary 

switch is pressed for at least 5 seconds. This operation is allowed to 
sales agents only. Users must not perform this operation.

Plug in the power plug again. (Or turn on 
the circuit breaker.)

Temporary (Force-Cool) switch

IF THE UNIT WOULD NOT BE USED FOR A LONG PERIOD OF TIME (MORE THAN 
1 MONTH), PLEASE FOLLOW THE STEPS BELOW FOR MAINTENANCE

•

  On a sunny day, perform Stainless Plasma Air 

Purifying (Fan) operation for approximately 
one half day. Mold can easily grow if air 
conditioner is not used for a long period of 
time while its inside is left wet. 

1

Dry the interior of 
the indoor unit.

2

Unplug the power 
plug or turn off the 
circuit breaker.

3

Remove the 
batteries from the 
remote controller.

Summary of Contents for RAC-18SX8

Page 1: ...iquant les présentes instructions après avoir entièrement lu ce mode d emploi Manuale di istruzioni Pag 157 207 Per garantire la migliore prestazione e la più lunga durataleggere attentamente e al completo le seguanti istruzioni Manual de instrucciones Página 209 259 Para obtener el mejor funcionamiento y asegurar años de uso libre de problemas lea cuidadosamente este manual de instrucciones Manua...

Page 2: ...e gas leaks around it Piping shall be suitable supported with a maximum spacing of 1m between the supports Please ensure smooth flow of water when installing the drain hose Make sure that a single phase 230V power source is used The use of other power sources may cause electrical components to overheat and lead to fire PRECAUTIONS DURING INSTALLATION PROHIBITION CONNECT EARTH LINE PROHIBITION WARN...

Page 3: ... may cause danger Turn off the circuit breaker if the unit is not be operated for a long period Do not climb on the outdoor unit or put objects on it When operating the unit with the door and windows opened the room humidity is always above 80 and with the air deflector facing down or moving automatically for a long period of time water will condense on the air deflector and drips down occasionall...

Page 4: ...tom Drain Port bottom Air Outlet Discharges cool air when in heating mode and warm air when in cooling and Dry Cool modes and warm or cold air when in the dehumidifying mode Remote Controller Holder To fix the remote controller on the wall or pillar Even if the operation is stopped the outdoor unit fan continues to rotate for 10 60 seconds to cool down the electrical parts In heating operation con...

Page 5: ...the air outlet Page 42 Air Quality Sensor Detects pollution of air such as cigarette smoke when the Air Quality Monitoring operation is set Page 21 Temporary Switch Force Cool switch If the remote controller does not work due to battery failure press this switch to start operation Page 49 Force cooling operation starts if this switch is pressed for more than 5 seconds This operation is allowed to ...

Page 6: ...rt heating operation Page 15 DEHUMIDIFY Button Press this button to start dehumidifying operation Page 15 COOL Button Press this button to start cooling operation Page 17 DRY COOL Button Press this button to start Dry Cool operation Page 17 BUTTONS TO START OPERATIONS Remote controller can be used when it is fixed on a wall or pillar using the remote controller holder Before fixing it make sure th...

Page 7: ...ress this button after the batteries are replaced and when the air conditioner does not function properly Page 11 MANUAL CLEAN Button Starts filter cleaning operation while the air conditioner operation is stopped Page 34 AIR PURIFYING Button Press this button to start Stainless Plasma Air Purifying FAN operation Page 18 BUTTONS TO START OPERATIONS FAN SPEED Button Press this button to select fan ...

Page 8: ...opening the front panel Install the anti mold wasabi cassette Pull out the anti mold wasabi cassette case Take out the anti mold wasabi cassette from the aluminium bag Anti mold wasabi cassette Aluminium bag Anti mold wasabi cassette case Hold the anti mold wasabi cassette with the handle side toward you and then install it into the unit Slide the anti mold wasabi cassette that has been taken out ...

Page 9: ... if the front panel is not closed securely Also the movable panel will not work properly on cooling operation etc If the front panel is loose it may come off and drop When opening the front panel upwards please do not use excessive force If the front panel comes off the device this may cause it to malfunction When the front panel remains open be sure to push up the panel support Push down the pane...

Page 10: ...er the power is turned on after the power plug is inserted into the power outlet or after the circuit breaker is switched on after power failure the cleaning unit makes one cycle of back and forth movement At this time the CLEAN indicator is lit One cycle of operation check will take approximately 7 minutes During the operation check the unit performs Fan operation while the movable panel and hori...

Page 11: ...uch circumstance where 2 indoor units are used in the same room This switch is not usually used The factory setting is at A side For this setting please make an inquiry to your sales agent Address selector switch Switch lever Remote controller backside Do not operate by yourself Push mark and pull ABOUT ADDRESS SELECTOR SWITCH Time is incremented Time is decremented Press SET TIME button to set th...

Page 12: ... the air conditioner will be in limited operation at 10 A or 15 A Point the remote controller to the signal receiver of the unit Signal reception distance is approximately 7m in front of the unit However this distance may be shorter or the signal may not be receivable if there is an electronic lighting device in the same room Handle the remote controller with care Dropping it or getting it wet may...

Page 13: ...ion Press the START STOP button again A short beep sounds and the automatic operation stops Operation mode will be displayed on the remote controller display Adjust the room temperature Press the ROOM TEMPERATURE button Every time you press it a short beep sounds and the temperature will change by 1 C is displayed if the temperature is set higher than the automatically set room temperature by 1 C ...

Page 14: ...e set in increments of 5 Humidity indication disappears in approximately 10 seconds if the operation is not started Increase Decrease 4 3 Lights up Lights up 5 STOP Outdoor temperature 20 C 21 C When it is below 20 C or over 24 C the heating function may not operate in order to protect the device Heating Dehumidifying Dry Cool Cooling Outdoor temperature 1 C 35 C Operation does not start if the ro...

Page 15: ...ITY button the humidity will change by 5 Humidity setting range is 40 70 In Quick Laundry mode fine adjustment of room temperature page 13 and fan speed selection page 14 can be made to your preference Fine adjustment of room temperature and humidity adjustment cannot be made in Condensation Control mode Press the HEAT button Adjust the room temperature and fan speed to your preference Temperature...

Page 16: ... operation is performed if the outside temperature is low as it will lower the room temperature OFF TIMER and ON TIMER page 28 which are to be set using clock function are not available during dehumidifying Quick Laundry and Condensation Control modes operation However the timer for 30 minutes and 1 9 hours can be set for Quick Laundry and Condensation Control modes with the SLEEP button To set to...

Page 17: ... adjusted Humidity to be set Temperature to be set Based on the detected outside and room temperature the temperature is set on an hourly basis within the range of 24 28 C Even if the room temperature reached the preset temperature the air conditioner may continue to operate if the preset humidity has not been reached Dry intermittent operation Dry Cool operation Operation stops Cooling operation ...

Page 18: ...tric dust collector operation If the Stainless Plasma Air Purifying mode is set while the air conditioner is in basic operation mode the air purifying function by the electric dust collector will operate together Press the START STOP button A short beep sounds and Ionized Mist operation stops Adjust the fan speed to your preference HI MED LOW SILENT can be selected Page 14 When only Ionized Mist o...

Page 19: ...ounds and INTERNAL CLEAN indicator turns on at the remote controller It will automatically stop after 1 hour of operation 1 2 Internal cleaning operation is not performed if the duration of cooling dehumidifying or Dry Cool operation is too short below approximately 10 minutes If the internal cleaning mode is set the internal cleaning operation will automatically start when cooling dehumidifying o...

Page 20: ... SELECTOR button until SLEEP blinks While SLEEP is blinking point the remote controller towards the unit and press the ON OFF button A short beep sounds and SLEEP indicator turns on on the remote controller 1 2 When in cooling operation the temperature and humidity will be controlled in combination with dehumidifying operation When in dehumidifying or Dry Cool mode temperature is controlled to a c...

Page 21: ... ROOM TEMPERATURE button to select sensitivity is displayed when sensitivity is increased by 1 level is displayed when sensitivity is decreased by 1 level Adjustable range is 7 levels from 3 to 3 Indication of 3 to 3 turns off in approximately 10 seconds Value sensitivity can be selected from 7 levels STOP Sensitivity increase Sensitivity decrease The Air Quality sensor detects air pollution inclu...

Page 22: ...remote control operation If any remote control operation is performed while MOLD MONITOR is set the preset Mold Monitoring mode is valid for 2 weeks from such remote control operation Once the above mentioned 2 weeks have elapsed the MONITOR indicator on the indoor unit turns off However MOLD MONITOR indication on the remote controller remains on If the MONITOR indicator on the indoor unit is off ...

Page 23: ...ol operation A short beep sounds and the Preference Cooler Warmer operation starts Every time you press it the mode will change as shown in the chart on the right Cannot be set on Dry Cool operation during manual operation Page 14 This operation mode can be set only during Dry Cool operation which has been activated by pressing the DRY COOL button It is not available during manual Dry Cool operati...

Page 24: ...Operating mechanism Heating When you want the room to be a little warmer Set approximately 2 C higher than the preset temperature Powerful heating operation is performed Dehumidifying When you want the room to be less humid Powerful dehumidifying operation is performed aiming to achieve humidity of approximately 40 Cooling When you want a little cooler air When you want the room to be a little coo...

Page 25: ...lly set to the suitable angle for each operation Even if the swing mode is set the vertical air deflector may stop swinging depending on the room temperature and humidity Page 27 It may take approximately 10 seconds for the air deflector to start moving This is due to the checking operation to set the air deflector to the correct angle Cooling operation Heating operation Dehumidifying Dry Cool ope...

Page 26: ...operation Even if wide airflow has been set the angle of horizontal air deflector may change in the event the room temperature and humidity continue to be high during Cooling Dehumidifying or Dry Cool operation The angle will change back to wide airflow once the temperature and humidity have been lowered by the air conditioning operation Adjust the horizontal airflow direction The angle of horizon...

Page 27: ...f the horizontal air deflector are not synchronized with each other When the air conditioner operation is stopped and then resumed the horizontal air deflector is set to the angle that had been set prior to its previous swinging action Even if the swing mode is set the horizontal air deflector may stop swinging depending on the room temperature and humidity Refer table below Horizontal angle of yo...

Page 28: ...perature and preset temperature How to preset the OFF TIMER ON TIMER For example When setting the timer to stop operation at 10 30 p m and your desired temperature is reached at 7 00 a m The timer with earlier preset time will function first based on the time at which the timer is set 3 2 6 5 4 1 OFF TIMER blinks 0 00 a m or the previous preset time is displayed Press the TIMER button to set the t...

Page 29: ... time How to cancel the preset timer RAR 3R5 RAR 3R5 RAR 3R5 Press the ON TIMER button ON TIMER blinks 6 00 a m or the previous preset time is displayed display indicates the sequence of OFF TIMER and ON TIMER function Press the TIMER button to set the time Time can be set in increments of 10 minutes The time can be fast forwarded by continuously pressing the button Press the PRESET button A short...

Page 30: ...IMER for heating operation warms up the room by the time you wake up Combination of ON TIMER and DEHUMIDIFY button Dehumidifying Condensation Control operation and ON TIMER for heating operation for the next morning can be set in combination before you go to sleep n The display below is shown in the case where ON TIMER is set for heating operation and then dehumidifying operation Condensation Cont...

Page 31: ...29 Combination of Sleep Timer and On Timer operation Set the operation to Auto Stop by Sleep Timer operation it can be set to start the operation next morning by ON TIMER Set ON TIMER first and then press the SLEEP button n The display below indicates ON TIMER which is set at 6 00 a m and 2 hours sleep time at 11 38 p m Press the SLEEP button The unit will turn off in 2 hours at 1 38 a m and will ...

Page 32: ...ing wiper inside Forward movement Sweeps and collects the dust on the micro mesh stainless filter Backward movement Once the filter cleaning operation has been completed the cleaning unit returns to the position at which air conditioning operation is not obstructed Dust catcher 1 Cleaning unit collects the dust swept by the cleaning unit on its forth movement 2 It turns over by the travelling forc...

Page 33: ...o the automatic filter cleaning n Automatic filter cleaning is not performed if the air conditioner operation is stopped by Sleep Timer or Off Timer function If you use Sleep Timer or Off Timer every time manual filter cleaning should be executed approximately once every 2 3 days Page 34 However if no manual filter cleaning is performed automatic filter cleaning will be performed approximately onc...

Page 34: ...o years and throw the dust if any Maintenance page 36 Greasy dirt can also be cleaned by the combined function of filter cleaning and micro mesh stainless filter If the dirt looks heavy remove the micro mesh stainless filter dust catcher and filter cleaning wiper to wash them with water Maintenance page 36 42 Press the MANUAL CLEAN button while pressing the ON OFF button remain for 5 seconds Adoub...

Page 35: ...he air conditioner is used To solve this problem clean the micro mesh stainless filter Page 37 If the MANUAL CLEAN button is pressed while the filter cleaning operation is prohibited a long beep sounds and the CLEAN indicator blinks Lit for 1 second off for 1 second for 10 seconds To protect the appliance the filter cleaning operation is not performed even if the MANUAL CLEAN button on the remote ...

Page 36: ...dust box 1 3 Stop the operation with the remote controller and unplug the power plug or turn off the circuit breaker 2 Wash the dust box with water If the dirt is stubborn wash with the dust box with warm water below 40 C After washing dry it in the shade Plug in the power plug or turn on the circuit breaker Dust box Do not expose the unit to water as it may cause an electric shock For cleaning in...

Page 37: ... page 8 on opening the front panel 3 Remove the front panel 4 Remove the front micro mesh stainless filter Upper micro mesh stainless filter Front micro mesh stainless filter Arm Arm 1 Push the end of the right side arm outward to release the tab 2 Move the left side arm outward to release the left tab and then pull the panel towards you Slide the locks 2 places each on the left and right of the m...

Page 38: ...d right downwards 8 Attach the upper micro mesh stainless filter Align the filter with the top face of the indoor unit and then slide and push it in The shape of the left and right filters is the same Push up the filter lock both sides on the top surface 9 10 11 Improper installation of the micro mesh stainless filter could result in malfunction Filter cleaning operation can not be performed prope...

Page 39: ...for the top and front face as shown with arrows If dust is accumulated at the inner side of the dust catcher remove the dust with a vacuum cleaner 5 Wash with water Please wash with water If the dirt is stubborn use a mild detergent and wash with warm water below 40 C Dry completely in the shade Attach the dust catcher Hold the dust catcher for the top face with its side having the lever facing to...

Page 40: ...the wiper cover and remove the filter cleaning wiper Open the top wiper cover upwards and remove the filter cleaning wiper Open the front wiper cover towards right and remove the filter cleaning wiper Top wiper cover Push up the bottom right side of the wiper cover for the top face in the arrow direction For top use For front use Front wiper cover 1 Remove the front panel Refer to page 37 on remov...

Page 41: ...he shorter one is for the top face Shorter part must be placed on the left Front wiper cover Close the front and top wiper cover Cleaning unit The cleaning unit will move to the end of right side Point the remote controller to the indoor unit again and press the MANUAL CLEAN button while pressing the PREFERENCE button hold for 5 seconds CLEAN indicator repeatedly lights up and dim Lit for 1 second...

Page 42: ...herwise it may cause malfunction 4 Remove the dirt on the electric dust collector electrodes 2 places and ionized mist generator with a toothbrush Be sure to use a dry toothbrush Lightly brushed off the dust Electric dust collector electrodes Ionized mist generator 5 Close the front panel Refer to page 9 on closing the front panel 6 Plug in the power plug or turn on the circuit breaker Electric du...

Page 43: ... performance is still unsatisfactory other heating appliances should be used to augment this unit s performance The air conditioner is designed to heat an entire room so that it may take some time before you feel warm Timer operation is recommended for effective preheating ahead of the desired time Page 28 When outside temperature becomes lower while humidity remains high condensation forms on the...

Page 44: ...erating the air conditioner at the same time as other heating appliances 3 Make efficient use of Air Quality Monitor and Mold Monitor when going out Refer to page 21 22 on Air Quality Monitor and Mold Monitor 4 Make efficient use of the timer before going to sleep Refer to page 28 31 on using the timer 5 The following must never be used for cleaning the indoor and outdoor units Benzine thinner and...

Page 45: ...nds off for 1 second Filter cleaning is not performed if the air conditioner operation is stopped by Sleep Timer or Off Timer function However if the air conditioner is stopped by Sleep Timer or Off Timer every time filter cleaning will be performed approximately once a week A whirring motor noise is generated due to driving of the cleaning unit A clapping noise is generated when the dust catcher ...

Page 46: ...ld growth inside the dust box in which the dust collected by filter cleaning operation is kept Although only a trace amount of anti mold elements is released there may be wasabi smell in the room depending on the environment in which the air conditioner is used If you feel this smell is unpleasant block one of the anti mold element outlets with a commercially available adhesive tape If this measur...

Page 47: ...CK THE FOLLOWING BEFORE SERVICE Signal cannot be received Remote controller display is dim or blank Operation does not start Does not cool well Does not heat well Movable panel does not move CLEAN indicator blinks CLEAN indicator blinks after cooling dehumidifying and Dry operations FAILURE OF IONIZED MIST GENERATOR AND ELECTRIC DUST COLLECTOR If the MIST AIR PURIFYING indicator on the indoor unit...

Page 48: ...rates and steam is emitted Auto fresh defrosting is activated as the heating operation is stopped the microcomputer checks frost accumulated in the indoor unit and instructs the unit to perform automatic defrosting if necessary Depending on the number of person in the room and the conditions of the room actual room temperature may deviate slightly from the remote controller s setting Plug in the p...

Page 49: ...eration if the remote controller cannot function due to dead batteries 1 Unplug the power plug when running the temporary operation Or turn off the circuit breaker 2 3 Automatic operation starts when the temporary switch is pressed The air conditioner performs force cooling operation if the temporary switch is pressed for at least 5 seconds This operation is allowed to sales agents only Users must...

Page 50: ...ollapsed or fell it could cause injury INSPECTION AND MAINTENANCE Air conditioner is designed to perform automatic filter cleaning to maintain the interior of air conditioner clean However the interior of air conditioner may get dirty and the air conditioning performance may be lowered after air conditioner is used for a few seasons Beside maintenance please perform inspection as well Dust deposit...

Page 51: ...ing Cooling Dry Cool operations and Ionized Mist operation page 18 Stainless Plasma Air Purifying operation page 18 Combined operation of Automatic Manual Heating Dehumidifying Cooling Dry Cool operations and Stainless Plasma Air Purifying operation page 18 During Internal Cleaning operation page 19 During preset of the Air Quality Monitor operation page 21 During preset of the Mold Monitor operat...

Page 52: ... 52 MEMO ...

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